/* SPDX-License-Identifier: MIT
 *
 * Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
 */

package conn

import (
	"github.com/sagernet/sing/common/control"
)

// UDP socket read/write buffer size (7MB). The value of 7MB is chosen as it is
// the max supported by a default configuration of macOS. Some platforms will
// silently clamp the value to other maximums, such as linux clamping to
// net.core.{r,w}mem_max (see _linux.go for additional implementation that works
// around this limitation)
const socketBufferSize = 7 << 20

// controlFns is a list of functions that are called from the listen config
// that can apply socket options.
var controlFns []control.Func